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package main

import (
	"fmt"

	"mm/internal/detector"
	"mm/internal/ui"
)

// reportLoop shows the user what the loop detector already tells the model
// (ticket 153): a warning while the model repeats itself, a severe struggle
// once the detector stops the turn — and a warning when calls keep failing
// with different inputs (ticket 160), which the model is not told about.
//
//	reportLoop(detector.Loop{Tool: "bash", Repeats: 4})                // ⚠ loop: bash ×4
//	reportLoop(detector.Loop{Tool: "bash", Repeats: 6, Stuck: true})   // ✖ stuck: bash ×6
//	reportLoop(detector.Loop{Tool: "bash", Repeats: 3, Failing: true}) // ⚠ failing: 3 tool calls in a row
func reportLoop(l detector.Loop) {
	ui.ReportStruggle(loopStruggle(l))
}

// loopStruggle is reportLoop's struggle, kept apart so it can be tested
// without a front end.
func loopStruggle(l detector.Loop) ui.Struggle {
	if l.Failing {
		return ui.Struggle{Label: fmt.Sprintf("failing: %d tool calls in a row", l.Repeats)}
	}
	if l.Stuck {
		return ui.Struggle{Severe: true, Label: fmt.Sprintf("stuck: %s ×%d", l.Tool, l.Repeats)}
	}
	return ui.Struggle{Label: fmt.Sprintf("loop: %s ×%d", l.Tool, l.Repeats)}
}